Answer:
this mutant will not be able to use lactose
Explanation:
The lac operon is a cluster of genes with the same promoter which are transcribed as a single messenger RNA (mRNA). The lac operon encodes different enzymes that are used by the bacteria to obtain energy from lactose. The LacI gene is required for producing a repressor protein that binds to the promoter of the operon in order to inactivate its transcription (i.e., by preventing RNA polymerase from binding). A mutation in this gene prevents from its binding to lactose and it becomes inactive to the Lac operon.
Answer:
The term "retro" in retrovirus refers to this reversal of the usual direction of transcription.
Explanation:
Retroviruses are the viruses from the virus family known as retroviridae. These are the viruses that use RNA as their genetic material and use an enzyme reverse transcriptase which is essential for their life cycle.
they called retro as they use the reverse process of the usual direction of transcription which means from RNA to DNA by duplicated their genetic material to produce DNA and incorporated into the genome of the host.
Answer:
The answer is chromatin and chromosomes.
Some thing that may interfere with the rover flow are
beaver dams
human dams
fallen leaves